I've seen quite a lot of discussion about these around the web as people felt aggrieved at having to pay to get to the box office before they could actually get the ticket. It's now been made official policy that you can use your print at home entry ticket. Details here:

Still works okay using Safari on an iPad. An earlier page with roughly the same message did disappear so maybe they've been having some temporary issues. Here's the exact text:

Passengers and spectators are advised that they need a valid ticket to travel in London. However, TfL have recognised that some people need to collect their Paralympic tickets from venues on the day of their event. In those cases TfL staff will allow spectators to travel on services operated by TfL as long as they have a print out ticket or confirmation they have purchased Paralympic tickets for that day.

Print out tickets and ticket confirmation will be valid on the following services: DLR, London buses, London Underground and London Overground. They will also allow you to travel on river services with a 1/3 discount. Print out tickets and ticket confirmation are not valid on the Emirates Airline. To find out if your ticket is valid on national rail services, including the Javelin, please contact the train operator directly.

Have tickets for Wed and printed them out. I will show anyone that asks those tickets, as we should be able to travel for free. We will get on from Martins Heron, so need a ticket from MH to wherever zone 9 is. I looked at the map herehttp://www.london2012.com/mm/Documen...ap_Neutral.pdf